GPT 5.5
11th on DeepSWE v1.1 Best (xhigh) at 67.0%. New on Convex No Guidelines at 14th with 77.68%; With Guidelines is 89.29%.
OpenAI · Proprietary · Fetched 2026-10-10
Benchmark scores
Boards older than 90 days are not counted as recommendationsBenchmarkSettingScoreRankCostAs of
Use it or not
Why
- Mid-front on DeepSWE with a checkable long-horizon score.
When not
- A different row from the GPT 5.6 / GPT 6 families.